Visually perceived eye level: changes induced by a pitched-from-vertical 2-line visual field.

The physical elevation corresponding to visually perceived eye level (VPEL) changes linearly with the pitch of a visual field. Deviations from true eye level average more than 0.5 times the angle of pitch over a 65 degrees pitch range. A visual field consisting of 2 dim, isolated vertical lines in darkness is more than 4/5 as effective as that of a complexly structured visual field; 2 horizontal lines have a small and inconsistent effect. Differences in influence on VPEL between pitched-from-vertical and horizontal lines were predicted from an analysis that extracted differences in retinal perspective resulting from changes in pitch. The Great Circle Model (GCM), based on a spherical approximation to the erect, stationary eye, predicts the present results and results of 8 other sets of experiments. The model treats the influence of a single line on VPEL as systematically related to the elevation of the intersection between the great circle containing the image of the line and the central vertical retinal meridian; generalized GCM combines visual inputs with inputs from the body-referenced mechanism and maps onto the central nervous system.     

Cocaine-induced brainstem seizures and behavior.

A variety of abnormal sensory/motor behaviors associated with electrical discharges recorded from the bilateral brainstem were induced in adult WKY rats by mechanical (electrode implants) and DC electrical current stimulations and by acute and chronic administration of cocaine. The electrode implant implicated one side or the other of the reticular system of the brainstem but subjects were not incapacitated by the stimulations. Cocaine (40 mg/kg) was injected subcutaneously for an acute experiment and subsequent 20 mg/kg doses twice daily for 3 days in a chronic study. Cocaine generated more abnormal behaviors in the brainstem perturbation group, especially the electrically perturbated subjects. The abnormal behaviors were yawning, retrocollis, hyperactivity, hypersensitivity, "beating drum" behavior, squealing, head bobbing, circling, sniffing, abnormal posturing, and facial twitching. Shifts in the power frequency spectra of the discharge patterns were noted between quiet and pacing behavioral states. Hypersensitivity to various auditory, tactile, and visual stimulation was present and shifts in the brainstem ambient power spectral frequency occurred in response to tactile stimulation. These findings suggest that the brainstem generates and propagates pathological discharges that can be elicited by mechanical and DC electrical perturbation. Cocaine was found to activate the discharge system and thus induce abnormal behaviors that are generated at the discharge site and at distant sites to which the discharge propagates. Cognitive functions may also be involved since dopaminergic and serotonergic cellular elements at the brainstem level are also implicated.     

理同、义和、性相通——《天方性理》与儒学在人性问题上的相通之处

在人性问题上,刘智的<天方性理>借鉴和吸收了中国传统儒学的许多内容,并与伊斯兰教的有关内容结合起来研究人性.本文从<天方性理>关于人性问题的论述到中国儒学在人性问题上的探讨做一比较研究来说明<天方性理>是将儒家之道与天方之经"择其理同而义合者"编纂而成.     

海洛因延迟强化物超快速折扣倾向的心理机制

以124名处于不同戒除时相的男性海洛因戒除者为被试, 采用金钱和海洛因延迟折扣任务(DDT), 并以基于线索暴露的渴求感测量为效度指标, 探讨了该类人群对海洛因延迟强化超快速折扣倾向及其心理机制。结果发现: (1) 相对于金钱延迟强化, 戒除者对海洛因延迟强化表现出显著的超快速折扣倾向, 且该倾向不随戒除期的延长而改变; (2) 戒除者对海洛因延迟强化的超快速折扣行为可能是其冲动性特质与海洛因相关线索共同作用的结果, 海洛因相对于金钱折扣率的增量部分可能反映了海洛因及其相关线索对该类人群主观渴求感的诱发效应。     

历史进步论研究二题

马克思的历史进步论时下主要遇到两种思潮的挑战:一种是历史"末世论"和"终结论",另一种是后现代历史观.本文就历史进步论与这两种思潮的关系作了具体的辨析、考察.马克思的历史进步论并不是"末世论"所讲的"历史目的论"或"神话预言",而是依据历史发展规律和人的创造性活动而确立起来的;社会进步是一个不断实现的过程,宣布"历史终结"未免荒唐.后现代历史观虽然对历史进步提出了一些值得思考的问题,但否定历史进步观的基本看法则是偏激的、片面的,科学的历史观不能没有对历史的本质、规律、发展趋向的基本把握,仅仅玩弄历史碎片只能导向历史虚无主义、相对主义.     

“批判正义”与人的自由和解放

马克思恩格斯的正义观是一种"批判正义".这种"批判正义"大致包括以下三个主要方面的内容:一,批判蒲鲁东(主义)、杜林等人"永恒正义"理念,确立正义理解的生产方式基础;二,批判资产阶级抽象人权理念,确立人权范畴的"过渡正义"性质;三,批判资本主义现实私有制度结构的非正义制度安排,确立未来正义社会的根本实现原则--每个人的全面而自由的发展.他们的目的是要摒弃资本主义财产关系下的狭隘的、片面的正义观念,确立一个每个人得以自由发展和全面解放自身与个性发展的正义社会.对于中国和谐社会的构建而言,马克思恩格斯的"批判正义"理念具有重要的借鉴意义.     

关于晚期消化道肿瘤姑息性手术治疗的思考

晚期消化道肿瘤预后差,生存期短,容易合并某种或某些严重影响脏器功能、甚至危及生命的并发症,如果手术无法彻底根治,需要尽快处理,采取姑息性手术治疗能够缓解症状、减轻痛苦、改善生活质量,甚至达到延长生命的目的。在综合治疗过程中,外科手术能够为下一步治疗提供基础,创造条件。多年以来,对于晚期消化道肿瘤的治疗,姑息性手术取得一...     

感染性休克患者术前应用盐酸戊乙奎醚的临床疗效

观察盐酸戊乙奎醚在感染性休克患者中作为术前药应用的临床疗效。感染性休克手术患者40例,随机分为2组：实验组术前30min肌注盐酸戊乙奎醚lmg,对照组肌注东莨菪碱0．3mg。于各时间点检测血乳酸值、血气（PaO2、PaCO2）及胃黏膜二氧化碳分压（PgCO2）。结果示实验组血乳酸下降、PaO2上升,PgCO2一PaCO...     

Assessing the Climate for Creativity (KEYS): Confirmatory factor analysis and psychometric examination of a Taiwan version

Understanding the feasibility of using KEYS to assess the organizational climate for creativity in non‐Western societies is essential for researchers studying cultural influences on workers' perceptions of workplace climates. This study reports on the effectiveness of translating KEYS, using data from 401 employees of 13 different companies in Taiwan. A confirmatory factor analysis was performed and its results indicated a satisfactory fit for a 10‐factor model. However, six items tackling environmental obstacles had low factor loadings (<0.3) and should either be eliminated or amended. The results raise questions regarding the role of cultural influences in international studies that assess creativity climates. Further research into the conceptualization of organizational creativity in Chinese societies is warranted.